Valve.



' G. 1. FERGUSON.-

VALVE.

APPLICATION FILED DEC. 6. 1909.

Patented Sept.

AM N112.

ED S A S GEORGE JONES FERGUSON, OF ST. LOUIS, MISSOURI.

' VALVE.

Specification of Letters JPatent.

Application filed December 6, 1909. Serial No. 531,785.

To all whom it may concern:

Be it known that I, Gnonen JoNns FERGU- soN, a subject of the King of Great Britain, residing at St. Louis, State of Missouri, have invented certain .new and useful Improvements in Valves, of which the following is a specification;

My invention relates to improvements in valves, whereby any globe, angle, orgate valve can be remodeled while in service and without removal, to makethe valve stem self-packing. p

- The principal object of my invention is to remodel the valve stem so it will be selfpacking by either of the following methods, by cutting it in an angular shape, by'forming it corrugated and pressing or shrinking a thimble having a rough interior surface upon the stem, the exterior of the thimble,

being of angular shape, or by shrinking the thimble on the valve stem and drilling a hole through the thimble and stem and securing it by a rivet, in order to provide an angular apex on the valve stem adapted to slide within the angular socket formed within the rotary non-sliding socket extension stem having a wide radial flange, and the handle by which the valve is opened and closed, also to provide a bushing to increase the diameter of the bearing for the ,radial fiange'on the handled extension socket stem,

the perfection of the joint between thecompression nut and the rotary extension socket stem being secured by acutely tapering surfaces, semi-fiexible disks, and washers mounted upon annular rims embedded in the disks, all of which improvement can. be applied without removing the valve, ordiscontinuing its regular service. The cost of removing the valve would often exceed the .cost of my improvement.

Other objects of the invention will appear in the description and subj acent claims.

In the drawings Figure 1 is a view of an angle-valve commonly used in steam heating apparatus. shown a part of my improvement as applied in a new valve, except that in a new valve the bushing would be an integral part of the compression nut. Fig. 2, shows a modification of the packing disk, and the valve stem equipped with a thimble, and the angular socket lined with an angular bushing. Fig. 3,; is across section view of the valve stems as in Fig. l. Fig. 4, is a cross section view.

Upon the valve stem 1s- -with the inner wall of the old st of the valve stems equipped with the thimble, and a bushing inside of the extension valve stem. Fig. 5, is a view in section of part of a stem and thimblei Fig. 6, is a view in cross section of. a stem and thimble. Fig; 7, is a view in cross section of a stem and 'thimble riveted thereon. Fig. 8, is a modified form withoutthe outside bushing, and having a longtapered contact surface betweenthe extension socket valve stem and the retaining nut.

I willnow describe my invention, like numbers indicating similar parts, in the specification and drawings.

Any kind or construction of valve equipped with a compression screw 33, can be. re-

modeled with my invention, consisting mainly in the thimble 38 attached to the old valve stem to make it angular, a bushing 23 externallyapplied to the compression nut 1 to enlarge its upper surface at the inwardly projecting flange 24 to present a large hearing for the radial flange'29 on the socket ex- Pfatented Sept. 7, 1915..

tension valve stem 25, and the ability toap- 1 ply these improvements without removing thevalve. A new valve may be constructed with an angular apex on its valve stem'integral therewith, but the thimble 38 presents a means to apply such angular apex ing 35 permits a like benefit within the socket 26. I

In remodeling an old valve I remove the handle, packing nut, gland, and the packing from the stufling box, cut 0d the old stem to the proper length and apply the thimble 38 which is the indis ensa le partof the re modeling feature. sion nut 1 I screw the external bushing 23 which has an internal thread made to fit upon the thread on the compression nut 1.

, The main, object of this external bushing 23 hen upon the compresof harder material; also the internal 'bush- 23 need not be removed during; the life 0 V The upper surface of the bushing 23 at the packing parts.

the valve. The thimble 38 and the external bushing'23' are the prime factors in enabling me to remodel any type of valve while in service and without removal, and further that these parts" enable me to provide a practical self-packing and self-fitting joint.

flange 24 is machined true and upon it'rests and rotates the radial flange 29 of the extension socket valve stem 25, and within the socket 26 vertically slides the lower valve stem 16 whose flattened shape as shown in Fig. 3, or its angular form as shown in Fig. 4, preventing it from turning in the socket 26 but it is free to slide up, or down vertically in the socket 26, which may have the internal bushing 35 (Fig.' 4) made of a harder material to increase its durability,

and the angular thimble 38 on the valve stem 16 may also be made of a more durable material than that composing the valve stem 16.

The thimble 38 can be shrunk upon the round valve stem 16 and riveted at 15 as shown in Fig. 7, or the valve stem 16 may have shallow grooves cut in it as in Fig. 6 and a similar internal surface in the thimble 38, but I prefer that the internal surface of the thimble 38 will merely be roughed when drawn over a mandrel and either pressed, or

shrunk upon the valve stem 16. This construction will obviate the necessity for refitting the old valve stem 16 as the rough interior of the thimble 38 as shown in Fig. 7 will bite into the round valve stem 16 when the rivet 15 will add to its security.-

The extension socket valve stem 25 is held in position by the retaining nut 27 which screws upon the external thread on the bushing 23, a semi-compressible washer 37 being placed between the retaining nut 27 and the bushing 23 ,to permit the retaining nut 27 to be easily "adjusted in regard to its proper tightness upon the disk 28 also semi-compressible, and the flange 29. The compositiondisk 28 in combination with the acutely tapering shape as shown in Fig. 2, and the corresponding tapering interior form of the retaining nut 27 is a modification of my self-pacln'ng joint. I will more particularly describe the relation of these self- The extension socket valve stem 25"being equipped with the annular upward projecting rib 40, Figs. 1 and 2, which makes a corresponding dent in the disk 28 and positively prevents any-leakage past it. A spring 31 may be placed in the original stuflingbox to keep the flange 29 or other pressure will exert a slight pressure on these parts.

In Figs. 1, and 8, the extension socket valve stem 25 is formed m an acute taper above the disk 28 in order to permanently guide the extension socket valve stem25 in a true plane by automatically taking up all of the wear of said stem 25 and that of the interior of the'retaining nut 27. This construction is essential in a self-packed structure as it is evident that it must also be selffitting, or else these parts will quickly deteriorate by assuming a wabbling motion destroying their efiiciency. I i

In Fig. 2, the acute taper is in the disk 28. This form of the disk will make it selffitting as it rotates in the similar shaped interior ofthe retaining nut 27.

Fig. 8, more particularly shows a modification wherein the long acute taper surface 42 being'groundto a fit and the gasket 28 being composed of a material immune to the action, of fluids such as acids, chemicals, or ammonia. In this construction I can omit the bushing 23 and reduce the external size of the retaining nut 27, and it seems best adapted for valves when frequent opening and closing is necessary as the long acute taper 42 secures a permanent bearing .and also provides a tight joint should the disk 28 become disintegrated, or broken. The

disk 28 in Fig. 2, may also be constructed to withstand acids, and corrosive fluids.

My invention consists broadly in an acutely tapering self packing and self-fit ting detachable construction of the exten, sion socket stem, either with or without .composition or of lead, or of any suitable material to withstand corrosive fluids pass ing therethrough, or an acute metal surface and flat disks orgaskets, such structures being particularly adapted to enable the remodeling of any type of valve into a selffitting and self-packing element, and further to enable the remodeling of valves in place without removal, and during service I provide the angular thimble 38 to be either shrunk or pressed onto the valve stem. I

' also provide the external bushing 23 whereby sufiicient surface is secured to permit of adding surface to the movingparts to in-- sure a durable and permanently tightjoint in the self-packing structure.

What I claim as new, is I 1. In a compression valve, a valve stem, an angular thimble secured .to said stem,

and an extension stem having an angular socket engaging said thimble.

. 2. In a compression valve, a valve stem,

an angular thimble secured thereto, and an extension stem carrying a handle and hav- 1iong an angular socket engaging said thim- 3. In a compression valve, a stem of circular cross section, and a thimble secured to.

. said stem and having an" angular periphery [and a roughened interior engaging said stem.

4. Ina compression valve, a valve stem,- an angular thimble secured thereto, and an extension stem carrying a handle and hav-' ing an angular socket lined with anangular bushing engaging said-thimble;

5. In a compression valve, a compound valvestem having an angular portion, and an angular socket surrounding such portion, a compression nut, a bushing having an interior thread engaging said nut, '"a retainingndt engaging exterior threads on said bush-- ing and retaining the outer portion of the compound stem, said bushing having an inwardly projecting flange between said outer portion and the compression nut.

6. In a compression valve, a compound valve stem .having a sliding portion and a rotary portion, a thimble having an angular exterior and secured upon the sliding portion, the rotating portion having a socket a bushing surrounding/said compression nut j and having an inwardly projecting flange,

between said compression nut and said stem extension, a retannng nut cooperating Wlth *the bushing and having a tapered portion cooperating with the tapered portionion the said extension to' retain the said extension in place.

8. In a compression valve, a stem portion,

a thinible having an angular periphery and secured to said stem portion, a stem extension having an angular socket to engage said thimble, a compression nut, a bushing secured thereto, and a retaining nut secured to the bushing and engaging atapered portion on the stem extension to retain thedatter. in place.

9. In a compression valve, a valve stem having an angular end, a stem extension having an angular socket engaging said end,

and having a radial flangezwith an annular rib thereon,'a packing disk pressed on "said rib, acompression nut, a bushing mounted jon said compression nut and having a flange providing an enlarged bearing surface for tween said said radial'flange, a retaining nut-engaging saidbushing and tapered to engage a ta-.

pered portionon said stem extension to retain the latter, and a spring interposed between said compression-nut" and said. stem extension.

10. In a compression valve, acornpound valve stem comprising, an inner threaded' stem having an angular end, a .rotary stem extension having an angular socket fitting said endand a radial flange with an annular rib, a packing disk pressed upon said rib, a compression nut, a bushing secured to said nut and having a portion underlying said radial flange and externally threaded a retaining'nut threaded to said bushing to se- 11. In a compression valve, a compound valve sternv comprising a lower threaded 'cure the stem extension, and a spring interposed between the compression nut and'the stem extension. so I stem,'a thimble surrounding the end of said lower stem, astem extension havin a socket fitting said thimble and a radial ange pro. vided with an annular rib, a conical disk pressedupon said rib, a compression nut having a threaded portion-cooperating with said'lower stem, and a retaining "nut fitting to said disk and attached to said compressionnut. I

12. In a compression valve, a compound valve stem comprising alower -threaded\ stem having an angular end, an upper stem portion having an angular socket fitting said end'and-having a radial flange carrying an annular rib, a packing disk pressed upon said rib,'said upper stem portion having a tapered part, a compressionnut screw threaded to receive said lower stein, a bushing surrounding the compression nut and having an inwardly projecting flange bestem portion, and a retaining nut cooperating'tor'etain theupper stem portion.

13. In a compression valve, a compound valve st'm comprising a lower threaded stem swivel jointed to a valve head and having an angular end, an upper stem por tion-having an angular socket surrounding said angular end and having, a long taper ing part and, a radial flange, a packing (118k pressed upon said flange, a'compression nut 1 threaded to. receive the lower stem, and a retaining nut:co6perating with'the compression nut and said tapered part to retain the upper'stem' portion. a GEORGEJONES FERGUSON.

Witnesses:

GEORGE K. FnRcUsoN, DoRo'rHv F. HENSLEY.

compression nut and said upper 7 ing with said tapered part and said bush- 

